CVE-2022-31003 Heap-based Buffer Overflow and Out-of-bounds Write in Sofia-SIP

What is CVE-2022-31003?

CVE-2022-31003 is a critical memory corruption vulnerability in Debian Debian Linux, published on 31 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Sofia-SIP is an open-source Session Initiation Protocol (SIP) User-Agent library. Prior to version 1.13.8, when parsing each line of a sdp message, `rest = record + 2` will access the memory behind `\0` and cause an out-of-bounds write. An attacker can send a message with evil sdp to FreeSWITCH, causing a crash or more serious consequence, such as remote code execution. Version 1.13.8 contains a patch for this issue.

Weakness: CWE-787, CWE-122

Which versions are affected by CVE-2022-31003?

It affects 2 products.

Products include Debian Debian Linux, Signalwire Sofia-Sip.

How do I fix CVE-2022-31003?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2022-31003 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-31003 exists.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2022-31003, DEBIAN-CVE-2022-31003, GHSA-8w5j-6g2j-pxcp, UBUNTU-CVE-2022-31003.